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1920CN - Color Inkjet - Fax
Brother 1920CN - Color Inkjet - Fax Manuals
Manuals and User Guides for Brother 1920CN - Color Inkjet - Fax. We have
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Brother 1920CN - Color Inkjet - Fax manual available for free PDF download: Service Manual
Brother 1920CN - Color Inkjet - Fax Service Manual (286 pages)
MULTI-FUNCTION CENTER
Brand:
Brother
| Category:
All in One Printer
| Size: 6.9 MB
Table of Contents
31
Chapter III. Theory of Operation
1
Service Manual
4
Safety Information
6
General Description
7
Machine Outline
8
Specifications
28
Installing the Update Data to the Machine
31
Table of Contents
31
Theory of Operation
32
1 Overview
33
2 Mechanisms
34
Scanner Mechanism
36
Laser Printing Mechanism
36
Paper Pick-Up and Registration Mechanism
37
Print Process Mechanism
39
Heat-Fixing Mechanism
40
Paper Ejecting Mechanism
41
Sensors and Actuators
43
3 Control Electronics
45
Chapter IV. Disassembly/Reassembly and Lubrication
47
1 Disassembly/Reassembly
47
Safety Precautions
48
Preparation
48
How to Access the Object Component
49
Disassembly Order Flow
50
Lower Rear Cover
50
Access Plates R and F
51
Paper Cassette
52
Document Tray ASSY
54
Upper Rear Cover
55
ADF Unit
57
Disassembling the ADF Unit
62
Scanner Unit and Control Panel ASSY
65
Disassembling the Scanner Unit
70
Disassembling the Control Panel ASSY
71
Relay PCB
72
Speaker
73
Scanner Mount
76
Paper Sub Tray and Tray Holder
77
VC Cover, VC Bracket, and VC Connector PCB (For Models Supporting Video Capture
78
Front Cover
78
Front Sub Cover (For Models Not Supporting Video Capture
79
Outer Chute and Paper Pinch Rollers
80
Main Cover
81
Switch Cover (For Models Not Equipped with a Power Switch
82
Laser Unit
83
Heat-Fixing Unit and FU Lamp
87
Fan
89
Drive Gear ASSY and Main Motor ASSY
91
NCU Shield and NCU PCB
93
Bottom Plate, Main PCB, and Bottom Insulation Film
97
Low-Voltage Power Supply PCB and Power Inlet
99
Inner Insulation Film, High-Voltage Power Supply PCB, Engine PCB, and 2Nd Cassette Relay PCB
101
Toner Sensor (Light-Receiver) PCB and Toner Sensor (LED) PCB
102
Gears and Paper Pick-Up Roller
103
Paper Feed Roller ASSY
104
Clutch Levers, Cassette Guide L, and Solenoid
105
Cleaning of High-Voltage Contacts and Grounding Contacts
107
2 Lubrication
107
1 ] ADF Unit
108
2 ] Scanner Mount
109
3 ] Drive Gear ASSY
110
4 ] Paper Cassette
112
Chapter V. Maintenance Mode
113
1 Entry Into the Maintenance Mode
114
2 List of Maintenance-Mode Functions
116
3 Detailed Description of Maintenance-Mode Functions
116
EEPROM Parameter Initialization
117
Printout of Scanning Compensation Data
119
ADF Performance Test
120
Test Pattern 1
121
Firmware Switch Setting and Printout
166
Operational Check of LCD
166
Operational Check of Control Panel PCB
168
Sensor Operational Check
169
CCD Scanner Area Setting
169
EEPROM Customizing
170
Erasure of Received FAX Messages Temporarily Stored in the Flash Memory
170
Machine Error Code Indication
171
Output of Transmission Log to the Telephone Line (Not Applicable to Machines W/O Fax
171
Cancellation of the Memory Security Mode (Applicable to the European Version W/ Fax Only
173
Chapter VI. Error Indication and Troubleshooting
174
1 Error Indication
174
Machine Errors
174
1 ] Error Messages On The LCD
175
Machine Error XX
179
Communications Errors (Not Applicable to Machines W/O Fax
189
2 Troubleshooting
189
Introduction
189
Precautions
189
Checking Prior to Troubleshooting
191
Troubleshooting Procedures
191
1 ] Control Panel Related
191
2 ] Telephone Related
192
3 ] Communications Related
192
4 ] Paper/Document Feeding Related
193
5 ] Print-Image Related
199
6 ] Pc-Driven Or Video Capture-Driven Printing
200
Location of High-Voltage Contacts and Grounding Contacts
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